Helmet with pads removable in emergency

ABSTRACT

The present invention relates to a helmet from which pads are removable in case of emergency. The helmet includes a helmet body  100 , pads  200  attached to the inside of the helmet body  100 , and fastening means  300  detachably attaching the corresponding pads  200  to the inside of the helmet body  100 . Each of the fastening means  300  includes a first fastening member  400  in the form of a bar provided on either one of the pad  200  and the inside of the helmet body  100  and a second fastening member  500  provided on the other of the pad  200  and the inside of the helmet body  100 , surrounding the first fastening member  400  such that the first fastening member  400  is inserted thereinto, and having an open portion  510  formed at one side thereof. When the pad  200  is pulled out, the first fastening members  400  are separated from the second fastening members  500  through the open portions  510  of the second fastening members  500.

TECHNICAL FIELD

The present invention relates to a helmet from which pads are removable in case of emergency.

BACKGROUND ART

It is generally essential for a rider of a two-wheeled vehicle to wear a safety helmet in order to protect his/her head when riding at high speed.

For example, a safety riding helmet disclosed in Patent Document 1 has a front open portion through which a wearer can secure his/her front field of view. A selectively openable/closable shield may be mounted in the opening to block wind and dust from entering through the open portion during riding.

The prior art safety riding helmet surrounds the wearer's entire head and has a lower end portion through which his/her head passes. However, the relatively narrow lower end portion makes it difficult to separate the safety riding helmet from the wearer's head. Particularly, pads embedded in the safety riding helmet are in close contact with the wearer's head and face for better stability or wearability, making it difficult to separate the safety riding helmet from his/her head. Thus, in case of an accident, it is very difficult for a rescuer to take off the safety helmet from the wearer's head.

PRIOR ART DOCUMENTS Patent Documents

(Patent Document 1) KR10-0649944 B1

DETAILED DESCRIPTION OF THE INVENTION Problems to be Solved by the Invention

The present invention has been made in an effort to solve the problems of the prior art and one aspect of the present invention is directed to a helmet in which fastening means are provided to facilitate the removal of pads from a helmet body such that the helmet body is easily taken off from a wearer's head in case of an accident.

Means for Solving the Problems

According to one embodiment of the present invention, a helmet with pads removable in emergency includes a helmet body, pads attached to the inside of the helmet body, and fastening means detachably attaching the corresponding pads to the inside of the helmet body wherein each of the fastening means includes a first fastening member in the form of a bar provided on either one of the pad and the inside of the helmet body and a second fastening member provided on the other of the pad and the inside of the helmet body, surrounding the first fastening member such that the first fastening member is inserted thereinto, and having an open portion formed at one side thereof, and wherein when the pad is pulled out, the first fastening members are separated from the second fastening members through the open portions of the second fastening members.

In the helmet, each of the second fastening members includes a flat base, a first extension protruding from one surface of the base facing the corresponding first fastening member, a second extension having one end extending from the end of the first extension and extending in parallel with the base, and a protrusion protruding from the other end of the second extension toward the base, and the open portion is formed between the protrusion and the base.

In the helmet, each of the first fastening members has an outer surface including first, second, third, and fourth sides, the first side of the first fastening member faces the base, the second side of the first fastening member faces the first extension, the third side of the first fastening member faces the second extension, and the fourth side of the first fastening member is latched to the protrusion.

The helmet further includes flat guides, each of which has one end fixed to either one of the corresponding pad and the inside of the helmet body and the other end as a free end and comes into contact with the second extension when the first fastening member is separated from or coupled to the second fastening member through the open portion of the second fastening member.

In the helmet, each of the guides is depressed toward either one of the pad and the inside of the helmet body relative to the first fastening member.

The helmet further includes fastening grooves, each of which is formed on either one of the corresponding pad and the inside of the helmet body, wherein one end of the base is fitted into the fastening groove when the first fastening member is inserted into the second fastening member.

In the helmet, the one end of the base is in the shape of an arc and the fastening groove is arc-shaped corresponding to the shape of the one end of the base.

The helmet further includes flat covers, each of which covers one surface of either one of the corresponding pad and the inside of the helmet body and has an opening across which the first fastening member extends.

The helmet further includes flat covers, each of which covers one surface of either one of the corresponding pad and the inside of the helmet body and has an opening across which the first fastening member extends, wherein one end of the guide extends from one side of the opening.

The helmet further includes flat covers, each of which covers one surface of either one of the corresponding pad and the inside of the helmet body and has an opening across which the first fastening member extends, wherein the fastening groove is formed by a protrusion protruding from the boundary of the opening.

In the helmet, the base is attached to the other of the pad and the inside of the helmet body through a concavo-convex engaging structure including a concave portion and a convex portion.

In the helmet, the convex portion is formed on the other surface of the base and the concave portion is formed in the other of the pad and the inside of the helmet body.

In the helmet, pulling means into which an object is insertable is attached to the corresponding pad to pull out the pad.

In the helmet, the first fastening member is provided on the pad and the second fastening member is provided on the inside of the helmet body.

In the helmet, the open portion is open downward and the first fastening member is separated from the second fastening member through the open portion of the second fastening member when the pad is pulled downward.

The helmet further includes flat guides, each of which has one end fixed to either one of the corresponding pad and the inside of the helmet body and the other end as a free end and comes into contact with the second fastening member when the first fastening member is separated from or coupled to the second fastening member through the open portion of the second fastening member.

In the helmet, each of the guides has at least one guide protrusion that comes into contact with the second fastening member after the first fastening member is separated from the second fastening member through the open portion of the second fastening member.

In the helmet, the guide protrusion protrudes from the guide so as to have a rounded shape in cross section.

The features and advantages of the present invention will become more apparent from the detailed description set forth below with reference to the appended drawings.

Prior to the detailed description of the invention, it should be understood that the terms and words used in the specification and claims are not to be construed as having common and dictionary meanings, but are construed as having meanings and concepts corresponding to the spirit of the invention in view of the principle that the inventor can define properly the concept of the terms and words in order to describe his/her invention with the best method.

Effects of the Invention

The helmet of the present invention is constructed such that the fastening means are provided to facilitate the removal of the pads from the helmet body. Due to this construction, the helmet body is easily taken off from a wearer's head in case of an accident.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a helmet with pads removable in emergency according to one embodiment of the present invention.

FIG. 2 is an exploded perspective view of a helmet with pads removable in emergency according to one embodiment of the present invention.

FIG. 3 is a perspective view of one of the fastening means illustrated in FIG. 2.

FIGS. 4a to 4d are cross-sectional views of one of the fastening means illustrated in FIG. 2.

FIG. 5 is a perspective view of one of the pads illustrated in FIG. 2.

FIGS. 6 to 8 are side views illustrating the operation of a helmet with pads removable in emergency according to one embodiment of the present invention.

FIG. 9 is a perspective view of a helmet with pads removable in emergency according to a further embodiment of the present invention.

FIGS. 10a to 10d are cross-sectional views of one of the fastening means illustrated in FIG. 9.

BEST MODE FOR CARRYING OUT THE INVENTION

The objects, certain advantages, and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments when taken in conjunction with the accompanying drawings. It should be noted that, wherever possible, the same elements are denoted by the same reference numerals even though they are depicted in different drawings. Although the terms “first”, “second”, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. In the description of the present invention, certain detailed explanations of related art are omitted when it is deemed that they may unnecessarily obscure the essence of the invention.

Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a helmet with pads removable in emergency according to one embodiment of the present invention, FIG. 2 is an exploded perspective view of a helmet with pads removable in emergency according to one embodiment of the present invention, and FIG. 3 is a perspective view of one of the fastening means illustrated in FIG. 2.

As illustrated in FIGS. 1 to 3, the helmet includes a helmet body 100, pads 200 attached to the inside of the helmet body 100, and fastening means 300 detachably attaching the corresponding pads 200 to the inside of the helmet body 100. Each of the fastening means 300 includes a first fastening member 400 in the form of a bar provided on either one of the pad 200 and the inside of the helmet body 100 and a second fastening member 500 provided on the other of the pad 200 or the inside of the helmet body 100, surrounding the first fastening member 400 such that the first fastening member 400 is inserted thereinto, and having an open portion 510 formed at one side thereof. When the pad 200 is pulled out, the first fastening members 400 are separated from the second fastening members 500 through the open portions 510 of the second fastening members 500.

The helmet body 100 performs a role in protecting a wearer's head. The helmet body 100 may be made of a shock absorbing material. For example, the helmet body 100 includes an outer shell 110 made of a hard synthetic resin and an absorber 120 provided in the outer shell made of expanded polystyrene (EPS). The outer shell 110 has high strength and the absorber 120 has appropriate strength and elasticity because of the characteristics of their materials. The pads 200 are attached to the inner wall of the absorber 120 through the fastening means 300 (see FIG. 2). The helmet body 100 however does not necessarily have to include the absorber 120. Thus, the pads 200 do not necessarily have to be attached to the inner wall of the absorber 120 and may be attached to any portions of the inside of the helmet body 100. The helmet body 100 has a front opening 130 through which the wearer can secure his/her field of view. The opening 130 is opened/closed by a shield 140 that blocks wind and dust. Both ends of the shield 140 are connected to turnable members provided at both sides of the opening 130 of the helmet body 100 such that the shield turns upward and downward to open and close the helmet body 100.

The pads 200 perform a role in enhancing the wearability of the helmet. The pads 200 are detachably attached to the inside of the helmet body 100 (for example, the inner wall of the absorber 120) by the fastening means 300. The pads 200 attached to the inside of the helmet body 100 come into contact with the cheeks and chin of the wearer of the helmet body 100. As illustrated in FIG. 2, each the pads 200 includes a central portion 210 in contact with the wearer's cheek or chin, a first branch 220 extending backward from the lower end of the central portion 210, and a second branch 230 extending upward from the upper end of the central portion 210. The wearer's ear may be located between the first branch 220 and the second branch 230. For each of the pads 200, one first fastening member 400 is assigned to each of the central portion 210, the first branch 220, and the second branch 230. That is, the first fastening members 400 are grouped in threes for the pads 200. The number of the second fastening member 500 provided on the inside of the helmet body 100 corresponds to the number of the first fastening members 400. Namely, three fastening means 300 may be provided for each pad 200. The pads 200 should be sufficiently elastic and a flat cover 800 may be provided to cover one surface (opposite to the surface thereof in contact with the wearer) of each of the pads 200. As illustrated in FIG. 3, the cover 800 has an opening 810 in which the first fastening member 400, a guide 600, and a protrusion 750 are arranged. In addition to the openings 810, a plurality of auxiliary openings 820 are further formed in the cover 800 for high flexibility and light weight.

The fastening means 300 detachably attach the pads 200 to the inside of the helmet body 100. Each of the fastening means 300 includes the first fastening member 400 and the second fastening member 500. Here, the first fastening member 400 is provided on the corresponding pad 200 and is in the form of a bar. For example, the first fastening member 400 may extend so as to cross the opening 810 of the cover 800 covering one surface of the pad 200. The second fastening member 500 is provided on inside of the helmet body 100 (for example, the inner wall of the absorber 120) and surrounds the first fastening member 400 such that the first fastening member 400 is inserted thereinto. The open portion 510 is formed at one side of the second fastening member 500. Due to this construction, when the pad 200 is pulled in one direction, the first fastening member 400 provided on the pad 200 can be separated from the second fastening member 500 through the open portion 510 of the second fastening member 500. For example, when the pad 200 is pulled downward, the first fastening member 400 provided on the pad 200 may be separated downward from the second fastening member 500 through the open portion 510 of the second fastening member 500 that may be open downward.

More specifically, each of the second fastening members 500 includes a base 520, a first extension 530, a second extension 540, and a protrusion 550 (see FIG. 3). The base 520 is flat in shape and the first extension 530 protrudes vertically from one surface of the base 520 facing the corresponding first fastening member 400. The second extension 540 has one end extending vertically from the end of the first extension 530 and extends in parallel with the base 520. The protrusion 550 protrudes from the other end of the second extension 540 toward the base 520. The open portion 510 is formed between the protrusion 550 and the base 520. That is, the second fastening member 500 has a structure in which the first extension 530, the second extension 540, and the protrusion 550 are formed in this order from the base 520. Due to this structure, the second fastening member 500 surrounds the bar-like first fastening member 400. The protrusion 550 is shorter in length than the first extension 530, leaving the open portion 510 between the protrusion 550 and the base 520.

The first fastening member 400 is in the shape of a square pillar and has an outer surface including four sides. As illustrated in FIG. 4a , the four sides of the first fastening member 400 are defined as a first side 410, a second side 420, a third side 430, and a fourth side 440. That is, the first side 410 shares the common edge with the second side 420, the second side 420 shares the common edge with the third side 430, the third side 430 shares the common edge with the fourth side 440, and the fourth side 440 shares the common edge with the first side 410. With this configuration, the first side 410 of the first fastening member 400 faces the base 520, the second side 420 of the first fastening member 400 faces the first extension 530, the third side 430 of the first fastening member 400 faces the second extension 540, and the fourth side 440 of the first fastening member 400 is latched to the protrusion 550. That is, the first, second, third, and fourth sides 410, 420, 430, and 440 of the first fastening member 400 are surrounded by the base 520, the first extension 530, the second extension 540, and the protrusion 550 of the second fastening member 500, respectively. Accordingly, when the pad 200 is pulled in one direction (downward direction), the first fastening member 400 provided on the pad 200 is moved in one direction (downward direction) along with the pad 200, and at the same time, the second extension 540 of the second fastening member 500 is warped. This warpage expands the open portion 510 formed between the protrusion 550 and the base 520 (see FIG. 4b ), and as a result, the first fastening member 400 can be separated from the second fastening member 500 through the open portion 510 (see FIGS. 4c and 4d ).

As illustrated in a partial enlarged view of FIG. 4a , the protrusion 550 has a first inclined face 551 in contact with the fourth side 440 when the first fastening member 400 is separated from the second fastening member 500. The first inclined face facilitates the separation of the fourth side 440 of the first fastening member 400 from the protrusion 550 of the second fastening member 500.

Conversely, the protrusion 550 of the fastening member 500 has a second inclined face 553 in contact with the second side 420 when the first fastening member 400 is coupled to the second fastening member 500. The second inclined face 553 is formed opposite to the first inclined face 551. The second inclined face allows the protrusion 550 of the second fastening member 500 to easily cross the second side 420 of the first fastening member 400.

As illustrated in FIG. 3, the guide 600 is fixed to the pad 200 to guide relative movement between the first fastening member 400 and the second fastening member 500 when the first fastening member 400 is separated from or coupled to the second fastening member 500 through the open portion 510 of the second fastening member 500.

Here, the guide 600 is flat in shape and has one end fixed to the pad 200 and the other end as a free end. The guide 600 is liable to warp with respect to the fixed end due to its elasticity because the other end is free. Accordingly, when the first fastening member 400 is separated from or coupled to the second fastening member 500 through the open portion 510 of the second fastening member 500, the guide 600 comes into contact with the second extension 540 of the second fastening member 500 and is warped towards the inside of the helmet body 100, as illustrated in FIG. 4b . In conclusion, the guide 600 can guide relative movement between the first fastening member 400 and the second fastening member 500 while being in contact with the second extension 540 of the second fastening member 500. The guide 600 is depressed toward the pad relative to the first fastening member 400 so that the protrusion 550 of the second fastening member 500 can go over the second side 420 of the first fastening member 400 when the first fastening member 400 is coupled to the second fastening member 500.

As illustrated in FIG. 3, the helmet further includes a fastening groove 700 to stably support the second fastening member 500 into which the first fastening member 400 is inserted. Here, the fastening groove 700 is provided on the pad 200 and one end of the base 520 is fitted into the fastening groove 700 when the first fastening member 400 is inserted into the second fastening member 500 (see FIG. 4a ). The fastening groove 700 limits the movement of the second fastening member 500 relative to the first fastening member 400 to stably support the second fastening member 500, so that the first fastening member 400 can be prevented from being undesirably separated from the second fastening member 500. As illustrated in FIG. 3, the one end of the base 520 is arc-shaped and the fastening groove 700 is also arc-shaped corresponding to the shape of the one end of the base 520. Due to their shapes, the fastening groove 700 surrounds the one end of the base 520, and as a result, the turning of the first fastening member 400 relative to the first fastening member 400 is blocked so that the second fastening member 500 can be more stably supported. In addition, even when it is desired to couple the first fastening member 400 to the second fastening member 500 in a state in which the first fastening member 400 and the second fastening member 500 are not accurately aligned with each other, the arc-shaped end of the base 520 and the arc-shaped fastening groove 700 are accurately aligned with each other while being in contact with each other so that stable coupling between the first fastening member 400 and the second fastening member 500 can be induced.

The guide 600 and the protrusion 750 are arranged in the opening 810 of the cover 800 covering one surface of the pad 200 (see FIG. 3). Specifically, when the first fastening member 400 extends across the opening 810 of the cover 800, one end of the guide 600 can be fixed to one side of the opening 810 and the fastening groove 700 can be formed by the protrusion 750 protruding from the boundary of the opening 810. More specifically, the opening 810 is divided into a first region 810 a and a second region 810 b by the first fastening member 400 extending across the opening 810 of the cover 800. The guide 600 extends from the first region 810 a of the opening 810 and the fastening groove 700 is formed by the protrusion 750 protruding from the boundary of the second region 810 b of the opening 810. That is, the guide 600 and the fastening groove 700 are arranged in the first region 810 a and the second region 810 b divided by the first fastening member 400, respectively. After the second extension 540 of the second fastening member 500 passes through the first region 810 a of the opening 810, the first fastening member 400 is coupled to the second fastening member 500. Thus, it is preferable that the area of the first region 810 a of the opening 810 is larger than that of the second extension 540.

A concavo-convex engaging structure 900 is provided to attach the second fastening member 500 to the inside of the helmet body 100. Specifically, as illustrated in FIGS. 4a to 4d , the base 520 of the second fastening member 500 is attached to the inside of the helmet body 100 through a concave portion 910 and a convex portion 920. Here, the convex portion 920 is formed on the other surface of the base 520 opposite to the one surface thereof from which the first extension 530 protrudes, and the concave portion 910 is formed on the inside of the helmet body 100 (for example, the inner wall of the absorber 120). For example, a hooked end of the convex portion 920 may be fitted into the concave portion 910 to ensure separable engagement of the convex portion 920 and the concave portion 910.

Pulling means 1000 is attached to the pad 200 to effectively pull out the pad 200, as illustrated in FIG. 5. Here, the pulling means 1000 is disposed on the underside of the pad 200 and an object is insertable thereinto. For example, the pulling means 1000 may have a semicircular shape in cross section. In this case, a rescuer can insert his/her fingers into the pulling means 1000 to pull the pad 200 downward. The pulling means 1000 may be reddish in color. In this case, a rescuer can easily visually recognize the pulling means 1000. The letter “Emergency” may be marked to display an “emergency situation”.

The first fastening members 400, the guides 600, the fastening grooves 700, the covers 800, etc. are provided on the pads 200 and the second fastening members 500, the concavo-convex engaging structures 900, etc. are provided on the inside of the helmet body 100, as described above, but the above description is not intended to limit the scope of the present invention. That is, the first fastening members 400, the guides 600, the fastening grooves 700, the covers 800, etc. are provided on the inside of the helmet body 100 and the second fastening members 500, the concavo-convex engaging structures 900, etc. are provided on the pads 200. Also in this case, it should be noted that when the pads 200 are pulled out, the first fastening members 400 can be separated from the second fastening members 500 through the open portions 510 (which may be openable upward) of the second fastening members 500.

MODE FOR CARRYING OUT THE INVENTION

FIGS. 6 to 8 are side views illustrating the operation of a helmet with pads removable in emergency according to one embodiment of the present invention. Referring to these figures, the operation of the helmet will be discussed below.

As illustrated in FIG. 6, first, the convex portion 920 of the second fastening member 500 is fitted into the concave portion 910 formed on the helmet body 100 in a state in which the second fastening member 500 is coupled with the first fastening member 400 provided on the pad 200. When the convex portion 920 is fitted into the concave portion 910, the pad 200 can be attached to the inside of the helmet body 100 by the concavo-convex engaging structure 900, as illustrated in FIG. 7. Thereafter, the wearer can wear the helmet body 100 on his/her head.

Next, as illustrated in FIG. 8, when a rescuer pulls the pad 200 downward in case of an accident, a force is applied to the pad 200 in the downward direction. At this time, the downward force is also transmitted to the first fastening member 400 provided on the pad 200, and finally, the first fastening member 400 can be separated through the open portion 510 of the second fastening member 500 because the second fastening member 500 is fixed to the inside of the helmet body 100 by the concavo-convex engaging structure 900. Specifically, the second extension 540 of the second fastening member 500 is warped to expand the open portion 510, as illustrated in FIGS. 4a to 4b , with the result that the protrusion 550 of the second fastening member 500 latched to the fourth side 440 of the first fastening member 400 can be separated from the first fastening member 400. Simultaneously with this, the one end of the base 520 can be separated from the fastening groove 700 and the second extension 540 of the second fastening member 500 is slidable in contact with the guide 600. Thereafter, as illustrated in FIGS. 4c to 4d , the second extension 540 of the second fastening member 500 escapes through the second region 810 b of the opening 810.

When the pad 200 is removed from the inside of the helmet body 100 by the above procedure, as illustrated in FIG. 8, the lower end portion of the helmet body 100 is widened, making it easy to remove the helmet body 100 from the wearer's head.

FIG. 9 is a perspective view of a helmet with pads removable in emergency according to a further embodiment of the present invention.

As illustrated in FIG. 9, the helmet of this embodiment further includes at least one guide protrusion 610 unlike the helmet of the previous embodiment. The guide protrusion 610 is formed in the guide 600. The guide protrusion 610 plays a role in guiding the second fastening member 500 separated from the first fastening member 400.

Specifically, as illustrated in FIG. 10a , the guide 600 is provided on the pad 200. Here, one end of the guide 600 is fixed to the pad 200 and the other end thereof is free. The guide 600 comes into contact with the second extension 540 of the second fastening member 500 when the first fastening member 400 is separated from or coupled to the second fastening member 500 through the open portion 510 of the second fastening member 500. Namely, the guide 600 can guide relative movement between the first fastening member 400 and the second fastening member 500 while being in contact with the second extension 540 of the second fastening member 500.

The guide protrusion 610 protrudes from one surface of the guide 600 in contact with the second extension 540 of the second fastening member 500. The guide protrusion 610 protrudes from one surface of the guide 610 so as to have a rounded shape in cross section. For example, the guide protrusion 610 may have a dome shape. The guide protrusion 610 may be provided in two and the two guide protrusions 610 are arranged in parallel (see FIG. 9).

With reference to FIGS. 10a to 10d , the separation of the first fastening member 400 through the open portion 510 of the second fastening member 500 will be discussed below.

First, as illustrated in FIGS. 10a and 10b , the second extension 540 of the second fastening member 500 is warped to expand the open portion 510, with the result that the protrusion 550 of the second fastening member 500 latched to the fourth side 440 of the first fastening member 400 can be separated from the first fastening member 400. Here, the second extension 540 of the second fastening member 500 slides in contact with the guide 600, and thereafter, the first extension 530 of the second fastening member 500 comes into contact with the guide protrusion 610 (see FIG. 10b ). As illustrated in FIGS. 10b and 10c , the first extension 530 and the second extension 540 of the second fastening member 500 slide along the guide protrusion 610 having a rounded cross-sectional shape and the second fastening member 500 can naturally move in the direction in which it is separated from the opening 810. That is, when a rescuer pulls the pad 200 downward, the downward force applied to the pad 200 allows the second fastening member 500 to slide in contact with the guide 600 and thereafter along the guide protrusion 610, and finally, the second fastening member 500 can be separated from the opening 810. Thereafter, the second extension 540 of the second fastening member 500 escapes through the second region 810 b of the opening 810 to achieve complete separation between the first fastening member 400 and the second fastening member 500, as illustrated in FIGS. 10c and 10 d.

As described above, the guide protrusion 610 of the guide 600 guides the second fastening member 500 such that the second fastening member 500 is easily separated from the opening 810.

The helmet of the present invention is basically intended for riding but is not necessarily limited thereto. It should be understood that the helmet of the present invention is applicable to all kinds of helmets, including helmets for sports such as skiing, bobsleigh, and skeleton.

The present invention has been described in detail with reference to its specific embodiments. These embodiments are provided for illustrative purposes and are not intended to limit the invention. Those skilled in the art will appreciate that various modifications and improvements are possible, without departing from the scope and spirit of the invention. Simple modifications and changes of the present invention belong to the scope of the present invention, and the specific scope of the present invention will be clearly defined by the appended claims.

[Explanation of reference numerals] 100: Helmet body 110: Outer shell 120: Absorber 130: Opening 140: Shield 200: Pad 210: Central portion 220: First branch 230: Second branch 300: Fastening means 400: First fastening member 410: First side 420: Second side 430: Third side 440: Fourth side 500: Second fastening member 510: Opening 520: Base 530: First extension 540: Second extension 550: Protrusion 551: First inclined face 553: Second inclined face 600: Guide 610: Guide protrusion 700: Fastening groove 750: Protrusion 800: Cover 810: Opening 810a: First region 810b: Second region 820: Auxiliary opening 900: Concavo-convex engaging 910: Concave portion structure 920: Convex portion 1000: Pulling means 

1. A helmet with pads removable in emergency, comprising: a helmet body; pads attached to the inside of the helmet body; and fastening means detachably attaching the corresponding pads to the inside of the helmet body, wherein each of the fastening means comprises a first fastening member in the form of a bar provided on either one of the pad and the inside of the helmet body and a second fastening member provided on the other of the pad and the inside of the helmet body, surrounding the first fastening member such that the first fastening member is inserted thereinto, and having an open portion formed at one side thereof, and wherein when the pad is pulled out, the first fastening members are separated from the second fastening members through the open portions of the second fastening members.
 2. The helmet according to claim 1, wherein each of the second fastening members comprises a flat base, a first extension protruding from one surface of the base facing the corresponding first fastening member, a second extension having one end extending from the end of the first extension and extending in parallel with the base, and a protrusion protruding from the other end of the second extension toward the base, and the open portion is formed between the protrusion and the base.
 3. The helmet according to claim 2, wherein each of the first fastening members has an outer surface comprising first, second, third, and fourth sides, the first side of the first fastening member faces the base, the second side of the first fastening member faces the first extension, the third side of the first fastening member faces the second extension, and the fourth side of the first fastening member is latched to the protrusion.
 4. The helmet according to claim 2, further comprising flat guides, each of which has one end fixed to either one of the corresponding pad and the inside of the helmet body and the other end as a free end and comes into contact with the second extension when the first fastening member is separated from or coupled to the second fastening member through the open portion of the second fastening member.
 5. The helmet according to claim 4, wherein each of the guides is depressed toward either one of the pad and the inside of the helmet body relative to the first fastening member.
 6. The helmet according to claim 2, further comprising fastening grooves, each of which is formed on either one of the corresponding pad and the inside of the helmet body, wherein one end of the base is fitted into the fastening groove when the first fastening member is inserted into the second fastening member.
 7. The helmet according to claim 6, wherein the one end of the base is in the shape of an arc and the fastening groove is arc-shaped corresponding to the shape of the one end of the base.
 8. The helmet according to claim 1, further comprising flat covers, each of which covers one surface of either one of the corresponding pad and the inside of the helmet body and has an opening across which the first fastening member extends.
 9. The helmet according to claim 4, further comprising flat covers, each of which covers one surface of either one of the corresponding pad and the inside of the helmet body and has an opening across which the first fastening member extends, wherein one end of the guide extends from one side of the opening.
 10. The helmet according to claim 6, further comprising flat covers, each of which covers one surface of either one of the corresponding pad and the inside of the helmet body and has an opening across which the first fastening member extends, wherein the fastening groove is formed by a protrusion protruding from the boundary of the opening.
 11. The helmet according to claim 2, wherein the base is attached to the other of the pad and the inside of the helmet body through a concavo-convex engaging structure comprising a concave portion and a convex portion.
 12. The helmet according to claim 11, wherein the convex portion is formed on the other surface of the base and the concave portion is formed in the other of the pad and the inside of the helmet body.
 13. The helmet according to claim 1, wherein pulling means into which an object is insertable is attached to the corresponding pad to pull out the pad.
 14. The helmet according to claim 1, wherein the first fastening member is provided on the pad and the second fastening member is provided on the inside of the helmet body.
 15. The helmet according to claim 14, wherein the open portion is open downward and the first fastening member is separated from the second fastening member through the open portion of the second fastening member when the pad is pulled downward.
 16. The helmet according to claim 1, further comprising flat guides, each of which has one end fixed to either one of the corresponding pad and the inside of the helmet body and the other end as a free end and comes into contact with the second fastening member when the first fastening member is separated from or coupled to the second fastening member through the open portion of the second fastening member.
 17. The helmet according to claim 16, wherein each of the guides has at least one guide protrusion that comes into contact with the second fastening member after the first fastening member is separated from the second fastening member through the open portion of the second fastening member.
 18. The helmet according to claim 17, wherein the guide protrusion protrudes from the guide so as to have a rounded shape in cross section. 